diff --git a/sandbox/setup.sh b/sandbox/setup.sh
index 798fa98..92a8926 100644
--- a/sandbox/setup.sh
+++ b/sandbox/setup.sh
@@ -8,9 +8,11 @@
 COREDESKTOP="$HOME/.local/share/coredesktop"
 STATUS=0
 
-# npm's global prefix is under /usr, so install to ~/.local; srt lands in ~/.local/bin
+# npm's global prefix is under /usr, so install to ~/.local; srt lands in ~/.local/bin.
+# srt has no install scripts of its own; the ones npm would otherwise warn it
+# blocked belong to the Windows-only @microsoft/mxc-sdk it optionally depends on.
 echo "Installing the sandbox runtime (srt)..."
-npm install --global --prefix "$HOME/.local" --no-fund --no-audit @anthropic-ai/sandbox-runtime || STATUS=1
+npm install --global --prefix "$HOME/.local" --no-fund --no-audit --ignore-scripts @anthropic-ai/sandbox-runtime || STATUS=1
 
 # --non-interactive skips Hermes' setup questions and its background gateway
 # service; `configure hermes` chooses a model provider afterwards